World of Warcraft®

Draw forth the infection from an enemy, consuming your Blood Plague and Frost Fever diseases on the target to activate a random fully-depleted rune as a Death Rune.

An unholy pact grants you the ability to fight on through damage that would kill mere mortals. When you would sustain fatal damage, you instead are wrapped in a Shroud of Purgatory, absorbing incoming healing equal to the amount of damage prevented, lasting 3 sec.

If any healing absorption remains when Shroud of Purgatory expires, you die. Otherwise, you survive. This effect may only occur every 3 min.

Victims of your Frost Fever disease are Chilled, reducing movement speed by 50% for 10 sec, and your Chains of Ice immobilizes targets for 3 sec.

Drain vitality from an undead minion, healing the Death Knight for 50% of her maximum health and causing the minion to suffer damage equal to 50% of its maximum health.

Each damaging Death Coil, Frost Strike, or Rune Strike generates 2 Blood Charges, up to a maximum of 12 charges. Blood Tap consumes 5 Blood Charges to activate a random fully-depleted rune as a Death Rune.

Shadowy tendrils coil around all enemies within 20 yards of a target (hostile or friendly), pulling them to the target's location.